Depending on what suppressor you get, there are adaptors you can purchase to step up whatever thread pitch you have on your barrel to the thread pitch or attachment system of the can. If it's 5/8 x 24 or 11/2 x 28 thread pitch on your muzzle that's an easy fix depending on your can.
This one isn't threaded at all. I guess my question is "can
any barrel be threaded or does it need to be a larger-diameter barrel to have enough material to be threaded? And even, is it worth the cost to have it cut/threaded or would it be more cost-effective to just rebarrel to one that comes threaded?